考虑时滞的APF直流侧电容电压波动规律分析  

Analysis about DC-side Voltage Fluctuating Rule based on Shunt Three-phase Voltage-source Active Power Filter with Time-delay

作　　者：石峰[1] 查晓明[1] 陈允平[1] 

机构地区：[1]武汉大学,湖北武汉430072

出　　处：《电力电子技术》2008年第6期20-21,24,共3页Power Electronics

摘　　要：有源电力滤波器(APF)是一个强非线性系统,其主电路参数选择直接影响其补偿性能,而直流侧电容电压纹波是影响其选择的重要指标。基于APF状态空间数学模型分析直流侧电容电压波动规律及纹波;根据特定负载推导出小时滞情况下电压波动率估算公式;最后进行了仿真实验验证。结果证明了所提估算公式的正确性及所提方法的有效性。该结论可直接用于参数选择。Active power filter（APF） is a strong nonlinear system, its performance is highly dependent with DC-side capacitor parameter,and DC-side voltage ripple is the key factor to select the capacitor parameter.Based on the state variable space model of APF,the which DC-side voltage fluctuating rate is derived.And then its estimated calculation method is presented based on a typical type of special load as the nonlinear current source to be compensated.Simulation and experimental results are provided to illustrate the validity of above calculation method of DC-side voltage fluctuating rate.The conclusion could be the reference for the capacitor parameter design.

关 键 词：滤波器/电压纹波 电压波动率 参数选择 

分 类 号：TN713[电子电信—电路与系统]